Chapter 14.1-14.2 Thermal Energy and Heat

14 terms by Missymoser 

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Temperature

the measure of motion of matter particles.

Fahrenheit scale

a temperature scale that defines the freezing point of water as 32 degrees and the boiling point of water a 212 degrees

Celsius scale

a temperature scale that defines the freezing point of water as 0 degrees and the boiling point of water as 100 degrees

Kelvin scale

the temperature scale in which the freezing point of water is 273 degrees and the boiling point is 373 degrees; 0 degrees is absolute zero

Absolute zero

the temperature at which no thermal energy can be removed from matter.

Heat

thermal energy that is transferred from matter at a higher temperature to matter at a lower temperature

Conduction

the transfer of energy by direct contact. The term can apply to either heat transfer or electron transfer.

Convection

the transfer of thermal energy by the circulation or movement of a liquid or gas

Convection current

the movement of a fluid, caused by differences in temperature, that transfers heat from one part of the fluid to another

Radiation

the transfer of energy by electromagnetic waves.

Conductor

a material that transfers heat, electricity, or both easily.

Insulator

a material that does not transfer, heat, electricity, or both easily.

Thermal energy

the total energy of all the particles in an object.

Specific heat

The amount of heat that must be absorbed or lost for 1 gram of a substance to change its temperature by 1°C.

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